class_docstr: Text Processor class implement NER, POS tag, lexical tree parsing.
  EnProcessor is designed by single instance mode.
code: def __new__(cls, *args, **kwargs):
      if not hasattr(EnProcessor, "_instance"):
          with EnProcessor._instance_lock:
              if not hasattr(EnProcessor, "_instance"):
                  EnProcessor._instance = object.__new__(cls)
      return EnProcessor._instance
  
imports: import re
  import nltk
  import spacy
  import threading
  from functools import reduce
  from spacy.tokens import Doc
  from .nltk_res_load import *
  from ..settings import *
label_desc: Use image node_id 2 for calling the EnProcessor obj's underlying member method code with example usage: obj.__new__(cls) and returns: EnProcessor